Ty'n Llan is a Grade II listed building in the Isle of Anglesey local planning authority area, Wales. First listed on 30 January 1968. Cottage.

Ty'n Llan

WRENN ID
hushed-roof-tide
Grade
II
Local Planning Authority
Isle of Anglesey
Constituency
Ynys Môn MP: Llinos Medi (PC)
Country
Wales
Date first listed
30 January 1968
Type
Cottage
Address
Ty'n Llan, Trefdraeth, Bodorgan
OS grid reference
SH 408 703
Coordinates
53.20637, -4.38415
Source
Cadw listing

Also on this page: flood risk · radon risk · weather exposure · detailed attributes ↓

Description

Ty'n Llan is a single-storey, two-window vernacular cottage that includes a former cowhouse to the right, which now has three windows. The building is constructed of rubble masonry on boulder foundations, with rendered elevations. It features a modern slate roof and rendered gable stacks that have dripstones and cappings.

On the east front, there are two windows with a doorway between them, with the openings slightly offset to the right. The rear has two windows, and the wing to the right has a two-window rear elevation. The windows are slightly recessed and consist of modern four-pane centrally fixed lights.

Local climate

Ty'n Llan sits in one of the wettest parts of the UK, with an average of 1,180 mm of rain a year. This makes it wetter than 90% of listed buildings in the UK. Its exposure to wind-driven rain is greater than that of 96% of listed buildings.

It experiences an average of 11 freeze-thaw cycles a year, fewer than 90% of listed buildings. Of these, 3 follow at least 1 mm of rain in the preceding 48 hours. Average temperatures at this location have risen by 0.3°C per decade since 1991.

Averages for 1991–2020; temperature trend 1991–2025. Figures describe the wider area (a grid cell of roughly 10 km), not the individual site. Contains modified Copernicus Climate Change Service information 2026.

More on this building

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  • Radon risk assessment
  • Weather exposure and heating demand — rain and frost month by month and year by year, wind direction, solar and humidity
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